Hi, I am in process of migration users from one company to another. We are moving corporate users to Exchange and store users to IMAIL (POP). We added domain from other company to our Exchange environment and when we move users it works fine.

My question is, can I have the same domain hosted on exchange and POP server (example: local.com on exchange and on POP)? Because I need booth store users and corporate users to have the same domain email address and they have to be hosted on different servers.

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Some of my colleagues are suggesting that it is possible since we have internal mail routing, while others are not so sure. Our external connector is MXLogic and he is pointing to Exchange, Exchange has a pointer to POP server for other domains that are hosted only on POP (example: local.net).

Why the need for 2 servers? Just have all email delivered to the Exchange server and let your store users POP their email down from there? The Exchange server will handle outbound mail for everyone. Next question is why POP at all - let them use OWA or Outlook Anywhere.

2. You want to put all users in one exchange? or 2 different exchange box?

3. Why it is cost 140 per user for exchange? I know you are using MX logic for relay and DR purpose. The each mailbox on MX logic should be around 15 i think (not recall correctly). I just wonder how you come up with the cost $140 which is pretty expensive to consider in first place.

@Johnny Nguyen 6002 :﻿That is the amount that I got from my Team lead, it is probably total cost of a user being on Exchange when you calculate all the cost (licencing, storage, support, etc)

Yes I am merging two companies in to one. Currently we are in a process of moving corporate users from domino to exchange and we have Send connector from exchange pointing to domino for the users who are still not moved. So what exchange does is if it is not able to find user on exchange it forwards email to domino.

I am not sure what would be a proper way, to set up new connector and add that same domain to it and point it to POP server or just simply add POP server to already existing connector.

What happens when you have two connectors set up with the same domain and each is pointing to different server?

Also, what happens when you have one connector pointing to two servers?

@Raymond: yes, I am considering that option and waiting for Lotus Domino admin to respond to my email to check if that is possible.

In the meantime I am also considering the option of setting up two servers on one Send connector that is used for internal relay. If anyone has experience with that I would appreciate your insight. My biggest concern is that I don`t break something because there is no way to test this before I implement it in the production. I`ll start another thread with this question about Send connectors and internal relay and post the answers here also.

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